Moneyline, Spread and Total: The Three Core Markets

Three markets carry almost all the money bet on team sports, and each one asks a different question. The moneyline asks who wins. The point spread asks who wins after one side is handicapped. The total asks whether both teams combined score more or fewer points than a set number.

Everything else on a game page is a variation on those three. Learn what each one is actually asking and most of the board stops looking arbitrary.

The moneyline: who wins, and what that costs

On a moneyline you pick the winner outright. There is no handicap, so the entire difference in team strength has to be carried by the price — a mismatch shows up as a lopsided pair of numbers rather than a big spread.

The right-hand column is the number that matters, and it comes from the same conversion covered in implied probability explained. A −250 favorite is not “a good bet because they will probably win” — it is a bet that needs to win 71.43% of the time to break even.

Reading a moneyline pair

Take a favorite at −250 with the other side at +200. Convert both: 71.43% and 33.33%, which sum to 104.76%. That surplus is the vig — the book’s margin — and dividing each side by the total strips it out:

• Favorite: 0.7143 ÷ 1.0476 = 68.18%
• Underdog: 0.3333 ÷ 1.0476 = 31.82%

Those two now sum to 100%, and 68.18% is the closest thing available to the market’s real opinion. The 4.55% difference is what the book charges to hold the market.

The point spread: who wins after a handicap

A spread is a number of points added to the underdog or subtracted from the favorite before the result is settled. It is chosen so that both outcomes are close to equally likely, which lets the book price both sides at the same number — conventionally −110.

To cover the spread is to beat it. A −6.5 favorite covers by winning by seven or more. A +6.5 underdog covers by losing by six or fewer, or by winning outright. The favorite bettor and the underdog bettor are both risking $110 to win $100, and the book keeps the difference.

Pushes, hooks and whole numbers

If the spread is a whole number and the margin lands exactly on it, the bet is a push and stakes are returned. A −3 favorite that wins by exactly three produces no winners and no losers on the spread.

The half point — the hook — exists to remove that possibility. At −3.5 there is no push: the favorite either wins by four or more, or the underdog covers. Every whole-number spread has a hook available on either side of it, at a price.

Why the hook on 3 and 7 is different in football

Not all half points are worth the same, and the reason is distributional. Football scoring comes in threes and sevens, so game margins pile up on specific numbers — 3 above all, then 7 — rather than spreading evenly across the range. Basketball margins are much smoother, because scores accumulate in twos and threes with many possessions.

The consequence is mechanical. Moving a spread from 3 to 3.5 in football flips the result of every game decided by exactly three points, and that is a large slice of games. Moving from 8 to 8.5 flips only the games decided by exactly eight, which is a much thinner slice. The book prices each half point according to how much probability sits on the number being crossed, so the hook on 3 costs materially more than the hook on 8.

Totals: over, under and the scoring environment

A total (or over/under) is a number for the combined score of both teams. You bet whether the actual combined score finishes above or below it. The structure is identical to a spread — both sides priced near −110, whole numbers can push, half points remove the push.

What moves a total is anything that changes expected scoring:

• Personnel. A missing high-usage scorer lowers the number; a missing defensive anchor raises it.
• Pace. Expected possessions matter as much as efficiency per possession.
• Conditions. Wind suppresses passing and kicking in football, so totals fall.
• Game script. A game expected to be one-sided is a game expected to slow down late.

Moneyline vs spread: two prices for the same opinion

A team’s moneyline and its spread are not independent markets. They are two expressions of one underlying probability distribution over the final margin, and they have to agree with each other or someone gets arbitraged.

The relationship, stated plainly: the moneyline is a spread of exactly zero, priced through the odds instead of through the handicap. Everything above zero on the margin distribution is a moneyline win. Everything above the spread number is a cover.

That gives you a sanity check that requires no model:

• The moneyline no-vig probability must be higher than the roughly 50% chance of covering a spread that favors the same team. If a favorite is 68% to win outright, it is by definition less than 68% to win by more than six.
• The bigger the spread, the wider that gap should be. A −1.5 favorite’s moneyline should be close to even money; a −13.5 favorite’s moneyline should be badly priced against you, because winning outright is far easier than winning by 14.
• If the two prices imply distributions that disagree — a moneyline that looks generous next to a spread that looks tight — the mispricing is in one of them, and shopping both is how you find out.

That last row is the one people get wrong most often. Backing a heavy favorite on the moneyline “because they’ll win” is paying a 71.43% break-even rate to avoid a handicap you may not have needed.

Alternate lines and buying points

Most books let you move a spread or total off its main number in exchange for a worse price, and the two directions have names: buying points (a friendlier number, a worse price) and selling points (a harder number, a better price).

The exchange rate is not linear. Each half point crossed is worth whatever probability mass sits on it, and that mass is not evenly distributed. Here is what price movement costs in probability terms:

So when a book offers you a half point for a move from −110 to −130, it is asking whether that half point is worth more than 4.14 percentage points of win probability. Around a key number in football it plausibly is. Around a number nothing lands on, it plainly is not — and the same offer at the same price in both situations is a bet on you not knowing the difference.

The general rule that survives scrutiny: buying points is defensible only when you are crossing a number that carries unusual weight, and it is close to always bad when you are crossing an ordinary one.

Worked payouts at standard prices

Everything above turns into money the same way. Profit on a negative price is stake × (100 ÷ |odds|); on a positive price it is stake × (odds ÷ 100).

Notice the −110 to −120 step on the same $50 spread bet: $45.45 becomes $41.67, an 8.3% reduction in what you are paid for identical risk. Small price differences are not small.

Which market should you actually bet?

Pick the market that matches the sentence you can defend. If the only thing you can say is “I think they win,” the moneyline is honest. If you can say “I think they win by more than a touchdown,” the spread is honest, and the moneyline is a hedge against your own opinion.

The one thing all three markets share is that the price is the opinion of a market that does this for a living, plus a fee. Beating it requires either a better estimate or a better price than the one in front of you, which is the whole subject of expected value in betting. Getting there through parlay combinations of these markets does the opposite, for reasons the parlay math makes uncomfortably clear.